Reversible functionalization of multi-walled carbon nanotubes with organic dyes
نویسندگان
چکیده
Multi-walled carbon nanotubes are dispersed in water via the formation of adducts with dyes, where the process may be monitored by the visual observation of colour variations of dye solutions. Atomic force microscopy images corroborate evidence for attachment of dyes on nanotubes. Laser Raman and Fourier transform infrared spectroscopies suggest intimate electronic interactions between nanotubes and dyes. By thin layer chromatography technique, dyes are successfully exfoliated from nanotubes, showing the reversible nature of the process.
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